Answer:
A serpent swam in a silver urn, A golden bird did in its mouth abide, The serpent drank the water, this in turn, Killed the serpent. Then the gold bird died.
The higher I climb, the hotter I engage. I cannot escape from my crystal cage.
What is round as a dishpan, deep as a tub, and still the oceans couldn't fill it up?
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.